Internal-combustion engine



H. A. CARSON.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED 0CT.29. I917- Patented Feb. 24, 1920.

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INTERNAL-COMBUSTION ENGINE.

To all whom it may concern Be it known that LjHENRYA. chaos, a-

Jcitizen of the United States, residing atSt.

Joseph, in the county of Buchanan and State of Missouri, have" inventedcertain new and useful Improvements in Internal-Combustion Engines, ofwhich the following is a specification, reference being had therein tothe accompanying drawing. y I

My invention relates to improvements in internal combustion engines, andthe objects of my improvements are, firstrto provide a a I I f fuelntake 14, (see Fig. 1,)- which latter ris providedwithvalve 15, whichvalveis simple, substantial and l durable engine, 0

this class, which shall. be of the: two cycle type, second: tosoconstruct and arrange the parts of an internal combustion:engine,:thatpractically all ofthe products of combustion shall be expelled'therefrom at each and every return stroke of the pistons, third: to

so. construct the engine,fltha t the gaseous fuel inducted therein shallnot becom-pressed before ignition of the fuel, fourth; to pro-' videanti-concussion means whereby abru t t e 'stopping of the outwardmovement of intake pistons is prevented.

Ifattain these objects by the mechanism illustrated. in the accompanyingdrawings,

in which "Figure 1 is a verticalsection of the engine,

secured on an engine base, (not shown,) by their respective stud boltsand nuts 3'v and 1".

Piston 5 is connected with crankshaft S, by'rod 9 and crank 10. Saidcrank shaft is extended through the crank case 11, and is rotatablymounted with said crank in said case. Said crank case is formedintegrally with the adj acent ends of cylinders 1 andv 2.

Piston 5 andvpiston 6 are slidably mounted,

in said cylinders, respectively. Said pistons are rigidly connected byconnectors 7 which are'formed integrally therewith.

Since said cylinders, their respectivepistons, and their hereinafterdescribed respective coacting parts, form two sets of mechanisms, whichare the same in construction set is described.-

[Said intake cylinder is provided with spark v specificationof'I etterslatent. Patented Feb 24, 1920." -Application' filed OctOber29,l917..'Seria1l To.199,035.

plug 13, which is adaptedfto be connected .withan electric ignitingsystem, and since said system may be anyone of the varlous f ignitingsystems now in use, and forms no 1 part of my lnvention, the same sneither shown nor described. J p 1 Said intake cylinder is provided withactuated tolclose' said fuel intake, by the spring 16. I

Intake cylinder 12 is also'provided with the exhaustoutlet 17, (see Fig.2,) which outlet is provided with valve'18; A

Said valve prov ded with stem 18 which is'a'ctuated by spring 19 for.closing said "valve. (Jam 20 is secured on crank Intakepiston 21 isslidably mounted in intake cy1inder12, and is actuated to move outwarchbypiston springs 22.

Theouter end of SELlClPlStOIl is adapted to nclose and compress acertain amount of shaft .8,and is adapted by rotation thereof, past theinner end of said stem, to move the. latter and thereby open said valve.

f air, in cushion chamber 12, for gradually stopping the outwardmovement of said piston. f 1 A V Chamberj 12 'is provided with the ventcockl31, by vwhichexit of air from said chamher is regulated. I

Intake piston 21 is moved inward'by cam 23, which is rotated againstfriction roll 24;

said roll being rotatably mounted between the outer ends of piston rods25, the inner ends of which are secured in piston 21.

Cam 23 is secured on the central portion of cam shaft 26, which latteris rotatably mounted in the outer ends of bearing brackets 27, which aresecured on the outer end of intake cylinder 12. Sprocket wheel 28 issecured onone end of said cam shaft, and is connected by sprocket chain29, with sprocketwheel 30, which is secured on crank shaft8. 1 Inoperation, with the parts in the position seen in Fig. 1, fly wheel 32is manually rotated clockwise,- thereby rotating shaft 8 and thetherewith connected cam 23. When the end of said cam passes frictionroll 24,

piston springs 22 move piston 21 outward.

. preciable, distance.

V to that of piston 6.

This movement of said intake iston is radually stopped by a cushion ofair, whichis formed in cushion chamber 12, "and escapes therefrom,through vent V cook 31. When said piston is thus moved, it produces apartial vacuum in cylinder. 12, which inducts a charge of explosivegaseous fuel intov said cylinder. .Said fuel is in; ducted from'anunshown source ofsupply,

tln'oughfuel intake 14, past valve 15, overcoming spring 16,, openingsaid valve, and .thence into cylinder 12 after which said V valve isclosed by thelast mentioned s ring. It ,will'beunderstood, that theactlonof springs 22, moves said intake piston almost instantly, therebyfilling cylinder 12 with said fuel, before piston 5 has moved an ap- Atthis juncture, said charge of fuelis ignited at spark plug 13, by thepreviously mentioned igniting system.

' Theflenergy" of the ignited charge drives piston 5, toward crank shaft8, which, by its rod and crank connections, rotates saidshaft clockwise,until said plston hasreaohed the end of. its stroke,.and is inaposition, similar During the previously described operations, the lastmentioned piston and its co acting intake piston, together .with theirdriving mechanisms, are moved-from the pof sition. shown, to a positionsimilar to :the

2 shown position ofpiston 5 and its coacting Jparts. 1

Fly wheel 32 isnow rotatedby its own. inertia, which rotates shaft 8;and fits connccted' parts, thereby moving piston-6- and been moved, fromtheir described positions, to the-positions shown. J

\Vhile piston 5 is thus being moved to'- ward its intake piston 21, cam23 moves the last mentionedpiston inward, until said pistonsa're' inthejpositionshowmas previously .stated. V

During'the first half of this piston movement, exhaust cam 20 is rotatedpast the'end of valve stem 18, (seeFigsf2'an'd 3) ,there# by openingva1vel8. During thelast half of said 'movement said valve is closed byaction of spring 19-.-:T. Atfthi s juncture pistons 5 and 21,havingreached the:1;;osition shown, have expelled, practically all of theproductsof combustion, from cylinders l and12, through exhaust outletand the thus openedvalve-18. I r

The inertia of fly wheel 32 continues rotating shaft 8, andtheldescribed operations are repeated.v l

mentioned gaseo'usyfuel is notconipressed in the described engine, andthat the same may bc'fedthrough fuel intake 1a, (see Fig.

atone atmosphere, or at any higher presvsure that, may :be desired,which higher pressure must not be suiiicient to normally.

overcome spring 16, by its pressure against 7 valve 15.; l y I Having:fullydescribed my invention,

In an internalcombustion engine provided with an intake cyhn'der and anintake piston in said cylinder; the combination with said V -whatIolaim-as'new,:'and'desire to secure" wbynLetters'Patent, is*:=

piston,'of a cam for'moving said piston in i QXYillCl and springs formoving said piston ,outwa1'd;rand a -ve1 1t'cockinwthe outer end ofrsaidcylinder whereby exit of"airflfrom*- saidscyl inder is regulated, forpneumati-' cally cushioning said :piston againstabrupt action of saidsprings. Y "In testimony whereof I affix my signature in thepresencefof'two witnesses.

- HENRY' A. CARSON;

' It .willbdunderStood that'the previously

